EP 2515570 A4 20150909 - METHOD AND DEVICE FOR CHANNEL ESTIMATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
Title (en)
METHOD AND DEVICE FOR CHANNEL ESTIMATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KANALSCHÄTZUNG IN EINEM ORTHOGONALEN FREQUENZMULTIPLEXSYSTEM
Title (fr)
PROCÉDÉ ET DISPOSITIF DESTINÉS À RÉALISER UNE ESTIMATION DE VOIE DANS UN SYSTÈME DE MULTIPLEXAGE PAR RÉPARTITION ORTHOGONALE DE LA FRÉQUENCE
Publication
Application
Priority
- CN 201010138069 A 20100324
- CN 2010078354 W 20101102
Abstract (en)
[origin: EP2515570A1] The present invention discloses a channel estimation method and device in an orthogonal frequency division multiplexing system. The method includes steps of: A. grouping physical resource blocks in the bandwidth of the orthogonal frequency division multiplexing system; B. extracting at least one group from groups for channel estimation to acquire a channel coefficient, wherein the number of the extracted groups is less than the total number of groups; C. completing the MIMO demodulation by using the acquired channel coefficient; D. judging whether the channel estimation on the grouping has been completed, if yes, ending, otherwise, returning to step B. The device divides the physical resource blocks (PRB) in the bandwidth of the orthogonal frequency division multiplexing system into several groups and then carries out channel estimation processing on each group of resource blocks successively and individually, so as to achieve memory sharing and save storage amount.
IPC 8 full level
H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04W 24/00 (2009.01)
CPC (source: EP US)
H04L 25/0204 (2013.01 - EP US); H04L 25/022 (2013.01 - EP US); H04L 25/0224 (2013.01 - EP US); H04L 25/0234 (2013.01 - EP US); H04L 27/2633 (2013.01 - EP US); H04L 5/0023 (2013.01 - EP US)
Citation (search report)
- [IAY] US 2009245402 A1 20091001 - RATNAKAR NIRANJAN N [US], et al
- [IA] US 2008240159 A1 20081002 - PALANKI RAVI [US], et al
- [YA] WO 2007022628 A1 20070301 - NORTEL NETWORKS LTD [CA], et al
- [A] US 2005243791 A1 20051103 - PARK MIN-CHEOL [KR], et al
- [A] US 2008240304 A1 20081002 - OH JEONG-TAE [KR], et al
- See references of WO 2011116606A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2515570 A1 20121024; EP 2515570 A4 20150909; EP 2515570 B1 20161221; CN 102202029 A 20110928; CN 102202029 B 20150128; IN 6619DEN2012 A 20151023; JP 2013520853 A 20130606; JP 5548785 B2 20140716; US 2012300884 A1 20121129; US 8798178 B2 20140805; WO 2011116606 A1 20110929
DOCDB simple family (application)
EP 10848268 A 20101102; CN 2010078354 W 20101102; CN 201010138069 A 20100324; IN 6619DEN2012 A 20120726; JP 2012553169 A 20101102; US 201013575900 A 20101102